补全对话，从方框里选择合适的选项。

Father: Hello!

Mike: .

Father: Sure. Hold on, please. She's doing homework.

Bailing: Hello.

Mike: .

Bailing: Hi, Mike. What are you doing?

Mike: My family is having a field trip.

Bailing: ?

Mike: He's taking pictures.

Bailing: ?

Mike: My mother is having a picnic.  My sister and my brother are under the tree. They are listening to music.

Bailing: .

Mike: Thank you. Talk to you later.

A. Have fun. B. And what about the others? C. What is your father doing? D. Hi, this is Mike. E. Hi! Can I speak to Bailing, please?